shamnanigans Share definition Flag noun – indicative of being chock-full of a boatload of hooey; consisting entirely of monkeyshine After 6PM on May 21, 2011 in ANY given time zone, folks were pretty much sure that the whole Rapture deal was a bunch of shamnanigans… shamnanigans by dvnix June 23, 2011 0 0 Get merch Get the shamnanigans mug. Buy Now — $32.95 See more merch